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nhd (MapServer)

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Service Description: This map service represents the most current version of the USGS National Hydrography Dataset from the National Map.The NHD High Resolution, is mapped at a scale of 1:24,000 scale or better (1:63,360 or better in Alaska). The service is designed to support viewing from 1:288K scale and below. These data are updated and maintained through Stewardship partnerships with states and other collaborative bodies. The NHD is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of surface water (lakes, ponds, and reservoirs), paths through which water flows (canals, ditches, streams, and rivers), and related entities such as point features (springs, wells, stream gages, and dams). The information encoded about these features includes classification and other characteristics, delineation, geographic name, position and related measures, a "reach code" through which other information can be related to the NHD, and the direction of water flow. The network of reach codes delineating water and transported material flow allows users to trace movement in upstream and downstream directions. In addition to this geographic information, the dataset contains metadata that supports the exchange of future updates and improvements to the data. The NHD supports many applications, such as making maps, geocoding observations, flow modeling, data maintenance, and stewardship. For additional information on NHD, go to https://nhd.usgs.gov/.

Map Name: Layers

Legend

All Layers and Tables

Dynamic Legend

Dynamic All Layers

Layers: Description:

Copyright Text: USGS TNM – National Hydrography Dataset. Data refreshed January, 2018.

Spatial Reference: 102100  (3857)


Single Fused Map Cache: false

Initial Extent: Full Extent: Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info: Supports Dynamic Layers: true

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, AMF, geoJSON

Min Scale: 577790.554289

Max Scale: 0



Child Resources:   Info   Dynamic Layer

Supported Operations:   Export Map   Identify   Find   Return Updates